Improving a high-efficiency, gated spectrometer for x-ray Thomson scattering experiments at the National Ignition Facility

Döppner, T.; Kraus, D.; Neumayer, P.; Bachmann, B.; Emig, J.; Falcone, R. W.; Fletcher, L. B.; Hardy, M.; Kalantar, D. H.; Kritcher, A. L.; Landen, O. L.; Ma, T.; Saunders, A. M.; Wood, R. D.

doi:10.1063/1.4959874

Title: Improving a high-efficiency, gated spectrometer for x-ray Thomson scattering experiments at the National Ignition Facility

Journal Article · Wed Aug 03 00:00:00 EDT 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4959874· OSTI ID:1360157

Döppner, T. ^[1]; Kraus, D. ^[2]; Neumayer, P. ^[3]; Bachmann, B. ^[1]; Emig, J. ^[1]; Falcone, R. W. ^[4]; Fletcher, L. B. ^[5]; Hardy, M. ^[1]; Kalantar, D. H. ^[1]; Kritcher, A. L. ^[1];

^[1]; Ma, T. ^[1]; Saunders, A. M. ^[2]; Wood, R. D. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Univ. of California, Berkeley, CA (United States)
Gesellschaft fur Schwerionenphysik, Darmstadt (Germany)
Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
SLAC National Accelerator Lab., Menlo Park, CA (United States)

We are developing x-ray Thomson scattering for applications in implosion experiments at the National Ignition Facility. In particular we have designed and fielded MACS, a high-efficiency, gated x-ray spectrometer at 7.5-10 keV [T. Döppner et al., Rev. Sci. Instrum. 85, 11D617 (2014)]. Here in this paper we report on two new Bragg crystals based on Highly Oriented Pyrolytic Graphite (HOPG), a flat crystal and a dual-section cylindrically curved crystal. We have performed in situ calibration measurements using a brass foil target, and we used the flat HOPG crystal to measure Mo K-shell emission at 18 keV in 2nd order diffraction. Such high photon energy line emission will be required to penetrate and probe ultra-high-density plasmas or plasmas of mid-Z elements.

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Research Organization:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: AC02-76SF00515; AC52-07NA27344; 13-ERD-073

OSTI ID:: 1360157

Journal Information:: Review of Scientific Instruments, Vol. 87, Issue 11; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 4 works

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References (11)

Platform for spectrally resolved x-ray scattering from imploding capsules at the National Ignition Facility Kraus, D.; Döppner, T.; Kritcher, A. L. Journal of Physics: Conference Series, Vol. 717 https://doi.org/10.1088/1742-6596/717/1/012067	journal	May 2016
High order reflectivity of highly oriented pyrolytic graphite crystals for x-ray energies up to 22 keV Döppner, T.; Neumayer, P.; Girard, F. Review of Scientific Instruments, Vol. 79, Issue 10 https://doi.org/10.1063/1.2966378	journal	October 2008
Structure of Iron to 1 Gbar and 40 000 K Stixrude, Lars Physical Review Letters, Vol. 108, Issue 5 https://doi.org/10.1103/PhysRevLett.108.055505	journal	February 2012
Simulating x-ray Thomson scattering signals from high-density, millimetre-scale plasmas at the National Ignition Facility Chapman, D. A.; Kraus, D.; Kritcher, A. L. Physics of Plasmas, Vol. 21, Issue 8 https://doi.org/10.1063/1.4893146	journal	August 2014
New broadband filtering device with rectangular efficiency shape based on x-ray focusing by strongly curved HOPG crystals Beckhoff, Burkhard; Kanngiesser, Birgit; Malzer, Wolfgang SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, SPIE Proceedings https://doi.org/10.1117/12.245140	conference	July 1996
High-energy x-ray backlighter spectrum measurements using calibrated image plates Maddox, B. R.; Park, H. S.; Remington, B. A. Review of Scientific Instruments, Vol. 82, Issue 2 https://doi.org/10.1063/1.3531979	journal	February 2011
Qualification of a high-efficiency, gated spectrometer for x-ray Thomson scattering on the National Ignition Facility Döppner, T.; Kritcher, A. L.; Neumayer, P. Review of Scientific Instruments, Vol. 85, Issue 11 https://doi.org/10.1063/1.4890253	journal	November 2014
The physics basis for ignition using indirect-drive targets on the National Ignition Facility Lindl, John D.; Amendt, Peter; Berger, Richard L. Physics of Plasmas, Vol. 11, Issue 2 https://doi.org/10.1063/1.1578638	journal	February 2004
X-ray Thomson scattering in high energy density plasmas Glenzer, Siegfried H.; Redmer, Ronald Reviews of Modern Physics, Vol. 81, Issue 4 https://doi.org/10.1103/RevModPhys.81.1625	journal	December 2009
Observations of strong ion-ion correlations in dense plasmas Ma, T.; Fletcher, L.; Pak, A. Physics of Plasmas, Vol. 21, Issue 5 https://doi.org/10.1063/1.4872161	journal	May 2014
X-ray Thomson scattering as a temperature probe for Gbar shock experiments Döppner, T.; Kritcher, A. L.; Kraus, D. Journal of Physics: Conference Series, Vol. 500, Issue 19 https://doi.org/10.1088/1742-6596/500/19/192019	journal	May 2014

Cited By (2)

A platform for x-ray Thomson scattering measurements of radiation hydrodynamics experiments on the NIF LeFevre, H. J.; Ma, K.; Belancourt, P. X. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5039392	journal	October 2018
X-ray penumbral imaging diagnostic developments at the National Ignition Facility Felker, Sean J.; Bachmann, Benjamin; Abu Shawareb, Hatim Target Diagnostics Physics and Engineering for Inertial Confinement Fusion VI https://doi.org/10.1117/12.2274611	conference	September 2017

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